Effects of Transcutaneous Electrical Acupoint Stimulation on Stress Response during Intubation and Extubation in Patients Undergoing Video-Assisted Thoracoscopic Surgery: A Prospective, Randomized Controlled Trial

Table 1

Baseline characteristics of the patients.

Variables	TEAS group (n = 62)	Control group (n = 60)	value
Gender (n (%))
Male	33 (53.2)	29 (48.3)	0.437
Female	29 (46.8)	31 (51.7)
Age (years)	64.32 ± 10.21	62.14 ± 11.34	0.595
Weight (kg)	59.45 ± 11.43	58.42 ± 11.92	0.514
BMI (kg/m^2)	23.63 ± 4.01	22.37 ± 5.74	0.419
ASA rating (n (%))
I	43 (69.4)	45 (75.0)	0.419
II	19 (30.6)	15 (25.0)
Operation time (min)	165.26 ± 17.47	168.48 ± 15.38	0.641
Anesthesia time (min)	187.47 ± 21.62	188.58 ± 25.27	0.818
Side of surgery (n (%))
Left side	31 (50.0)	31 (51.7)
Right side	31 (50.0)	29 (48.3)	0.841
TNM stage (n (%))
I	35 (56.5)	33 (55.0)	0.742
II	27 (43.5)	27 (45.0)

Note. Patients in the TEAS group received electroacupuncture stimulation of bilateral Hegu (LI4), Neiguan (PC6), Lieque (LU7), and Chize (LU5) acupoints from 30 min before anesthesia to the end of surgery. The patients in the control group did stimulation. TEAS: transcutaneous electrical acupoint stimulation; ASA: American Society of Anesthesiologists; BMI: body mass index; TNM: tumor, node, and metastasis.